Abstract
A Wideband Slot Antenna with Folded Parasitic Line for Multiple Band Operation
Highlights
Nowadays, wireless communication systems, which use antennas to radiate or receive electromagnetic waves, have been grown very fast wherever in mobile communications, warehouse manufacturing systems, industrial communications, medical services, and etc. [1,2,3,4]
The multiband antenna composing of the monopole strip line connecting to the bow-tie patch to radiate at the first and third resonant frequencies, respectively, and the parasitic loop placed on the bottom layer responding to the second resonant frequency was presented in [11]
It has been noticed that the outer edge of slot responses to the first frequency band of 824–960 MHz
Summary
Wireless communication systems, which use antennas to radiate or receive electromagnetic waves, have been grown very fast wherever in mobile communications, warehouse manufacturing systems, industrial communications, medical services, and etc. [1,2,3,4]. Both presented antennas in [15], [16] have very narrow band notches and it is very difficult to create the band notches at low frequency due to limited spaces for parasitic elements This technique may not be suitable to use for multiple band operation in some modern wireless communication systems. To overcome this problem, a new folded step parasitic line is proposed to be used with a conventional wideband slot antenna in this paper. A new folded step parasitic line is proposed to be used with a conventional wideband slot antenna in this paper By using this technique, the notched band at lower frequency can be obtained and the impedance bandwidth can be adjusted.
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